CN103301950A - Combined cationic collector for reverse flotation desilication of hematite stone - Google Patents
Combined cationic collector for reverse flotation desilication of hematite stone Download PDFInfo
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- CN103301950A CN103301950A CN2013101915696A CN201310191569A CN103301950A CN 103301950 A CN103301950 A CN 103301950A CN 2013101915696 A CN2013101915696 A CN 2013101915696A CN 201310191569 A CN201310191569 A CN 201310191569A CN 103301950 A CN103301950 A CN 103301950A
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Abstract
The invention discloses a combined cationic collector for reverse flotation desilication of hematite stone, which is characterized in that the cationic collector is prepared from 100 parts of N - dodecyl ethylenediamine used as a main collector, 50 to 70 parts of glacial acetic acid used as a solubilizer, and 100 parts of aliphatic alcohol used a the synergist in parts by weight; the preparation process of the cationic collector comprises the following steps: mixing the N-dodecyl ethylenediamine and the glacial acetic acid according to mass ratio at room temperature, stirring the mixture with the stirring speed of 300 to 1500 rad/min for 3-10 minutes till to be an uniform solution, adding a certain quality of aliphatic alcohol into the solution, and stirring 2 to 3 minutes to obtain the hematite stone reverse flotation desilication combination of cationic collector. Compared with a conventional hematite reverse flotation collector, the collector provided by the invention has the advantages that at room temperature, the floatation effect is good, the foam viscosity is small, and the cost is moderate.
Description
Technical field
The present invention relates to a kind of iron ore reverse flotation desiliconization collecting agent, relate in particular to a kind of combination cation-collecting agent of hematite Counterfloatating desiliconization, belong to the Mineral Processing Engineering technical field.This combined capturing and collecting agent that the present invention provides have production cost low, be applicable to the characteristics such as flotation at low temperature.
Background technology
China's iron ore deposit is abundant, but along with the extension in mine is exploited, grade of ore reduced year by year, difficulty selects degree to continue to increase.In recent years, poor, thin, the assorted characteristics of China's iron ore deposit become increasingly conspicuous, and beneficiation cost raises year by year, and is difficult to produce fine quality iron concentrate, has restricted to a certain extent the development of China's steel and iron industry.
Concerning difficulty is selected lean ore, only depend on traditional gravity treatment, magnetic separation process to be difficult to reach the requirement of smelting, so the status of flotation in iron ore beneficiation is more and more important.The key of flotation success depends on the selecting properly of floating agent to a great extent.Collecting agent is most important a kind of in the floating agent, and it rationally uses significant to improving difficult ore dressing Potential Comprehensive Utilization.At present, the collecting agent that is applied to hematite reverse flotation mainly contains two types of anion collecting agent and cation-collecting agents.
In hematite reverse flotation technique, the research and development of the hematite reverse flotation collecting agent part that still comes with some shortcomings.Make collecting agent such as anion reverse floatation with aliphatic acid, flotation temperature is high, energy consumption greatly, selectively relatively poor, dosing is large and will make the anion reverse floatation agent system complicated with addition of lime-soda mixture, cause higher owing to slurry pH and employing anionic medicament causes the filter efficiency of flotation concentrate very low simultaneously, and inhibitor is relatively poor to microfine iron ore inhibition, thereby cause the flotation tailing grade higher, caused the serious waste of iron resource; The shortcomings such as then there is medicament preparation inconvenience in cation-collecting agent, flotation efficiency is on the low side, the foam viscosity is large, flowability and poor selectivity.
Summary of the invention
The cation-collecting agent and the method for floating thereof that the purpose of this invention is to provide a kind of hematite Counterfloatating desiliconization are used for overcoming the deficiencies in the prior art.The present invention compares with the hematite reverse flotation collecting agent of routine, has the advantages such as flotation is effective under the normal temperature, foam viscosity is little, moderate.
The technical solution that the present invention provides is: the cation-collecting agent that this hematite reverse flotation takes off, be characterized in that this cation-collecting agent is that main collecting agent, 50～70 parts of glacial acetic acids are that solubilizer, 100 parts of fatty alcohols are synergist by 100 parts of N-dodecyl ethylenediamines, wherein said umber is mass fraction.
For realizing better purpose of the present invention, described synergist is molecular weight greater than 60 fatty alcohol, includes but not limited to n-butanol, polyethylene glycol, n-hexyl alcohol, the tert-butyl alcohol etc.
The preparation process of the cation-collecting agent that this hematite reverse flotation takes off is: at room temperature, N-dodecyl ethylenediamine is mixed in mass ratio with glacial acetic acid, the fatty alcohol that adds certain mass through the mixing speed of 300～1500rad/min 3～10 minutes after become uniform solution, stirred 2～3 minutes, and namely obtained hematite reverse flotation combination cation-collecting agent.
The using method of the cation-collecting agent that the hematite reverse flotation that the present invention provides takes off is: after adding adjusting agent (bloodstone inhibitor), according to dosage directly add after cation-collecting agent that this hematite reverse flotation takes off fully stirs with ore pulp in flotation cell, in flotation cell, carry out flotation under the normal temperature and get final product, do not need ore pulp is heated.
The present invention compared with prior art, its beneficial effect is: at normal temperatures (15～25 ℃) flotation of (1) hematite Counterfloatating desiliconization of the present invention combination cation-collecting agent, and do not affect mineral processing index.
(2) the cation-collecting agent preparation technology that takes off of the hematite reverse flotation among the present invention is simple, and equipment investment is few, and price is lower, is fit to be widely used.
(3) cation-collecting agent that takes off of the hematite reverse flotation among the present invention can prepare in advance, and easy to use, the foam volume that medicament forms in floatation process meets the flotation requirement, and whole flow operations is smooth.
Description of drawings
Fig. 1 is the schematic flow sheet of the hematite reverse flotation of the present invention cation-collecting agent sorting artificial mixed ore of taking off.
Wherein mixing the ore deposit is bloodstone minal (T
Fe68.88%) and quartzy minal in mass ratio 60:40 mix and (to mix ore deposit T
Fe41.33%).
Fig. 2 is the lean hematite magnetic concentrate (T of cation-collecting agent reverse flotation Liaoning Province that hematite reverse flotation of the present invention takes off
Fe48.30%) schematic flow sheet.
Specific embodiments
The effect of the cation-collecting agent that this hematite reverse flotation takes off is described below by artificial mixed ore and actual sorting mineral example.
Example 1: with bloodstone minal (TFe 68.88%) and the in mass ratio 60:40 mixing of quartzy minal, by following regime of agent and process conditions flotation: N-dodecyl ethylenediamine in the cation-collecting agent that the hematite reverse flotation takes off: acetic acid: polyethylene glycol=100:50:100, the cation-collecting agent consumption that the hematite reverse flotation takes off is 200g/t, and adjusting agent cornstarch consumption is 150g/t.
Get and mix ore deposit 100g and add in the flotation device, pulp density is 40%, carries out flotation by flow process shown in Figure 1, can get the iron grade and be 57.23%, iron recovery is 90.64% iron ore concentrate, and Iron Grade of Tailings is 10.70%.
Example 2: with bloodstone minal (TFe 68.88%) and the in mass ratio 60:40 mixing of quartzy minal, by following regime of agent and process conditions flotation: N-dodecyl ethylenediamine in the cation-collecting agent that the hematite reverse flotation takes off: acetic acid: n-butanol=100:70:100, the cation-collecting agent consumption that the hematite reverse flotation takes off is 200g/t, and adjusting agent cornstarch consumption is 100g/t.
Get and mix ore deposit 100g and add in the flotation device, pulp density is 40%, carries out flotation by flow process shown in Figure 1, can get the iron grade and be 57.44%, iron recovery is 90.02% iron ore concentrate, and Iron Grade of Tailings is 11.71%.
Example 3: with bloodstone minal (TFe 68.88%) and the in mass ratio 60:40 mixing of quartzy minal, press following regime of agent and process conditions flotation: N-dodecyl ethylenediamine in the combination cation-collecting agent: acetic acid: n-hexyl alcohol=100:60:100, cation combined capturing and collecting agent consumption is 200g/t, and adjusting agent cornstarch consumption is 100g/t.
Get and mix ore deposit 100g and add in the flotation device, pulp density is 40%, carries out flotation by flow process shown in Figure 1, can get the iron grade and be 56.23%, iron recovery is 91.58% iron ore concentrate, and Iron Grade of Tailings is 10.66%.
Example 4: with bloodstone minal (TFe 68.88%) and the in mass ratio 60:40 mixing of quartzy minal, press following regime of agent and process conditions flotation: N-dodecyl ethylenediamine in the combination cation-collecting agent: acetic acid: the tert-butyl alcohol=100:70:100, cation combined capturing and collecting agent consumption is 200g/t, and adjusting agent cornstarch consumption is 100g/t.
Get and mix ore deposit 100g and add in the flotation device, pulp density is 40%, carries out flotation by flow process shown in Figure 1, can get the iron grade and be 58.26%, iron recovery is 90.02% iron ore concentrate, and Iron Grade of Tailings is 88.19%.
Example 5: get the lean hematite magnetic concentrate 300g of Liaoning Province and add in the flotation device, carry out flotation by shown in Figure 2.Required regime of agent is: N-dodecyl ethylenediamine: acetic acid: polyethylene glycol=100:70:100, and the cation-collecting agent consumption that the hematite reverse flotation takes off is 300g/t, and inhibitor cornstarch consumption is 200g/t, and adjusting agent NaOH consumption is 400g/t.Adopt one roughing, primary cleaning, scan the closed circuit flow process of returning with the chats order for twice, carry out flotation operation under natural temperature, can obtain the iron ore concentrate of iron grade 66.07%, iron recovery 83.45%, Iron Grade of Tailings is 17.06%.
Claims (4)
1. cation-collecting agent that the hematite reverse flotation takes off, it is characterized in that this cation-collecting agent is that main collecting agent, 50～70 parts of glacial acetic acids are that solubilizer, 100 parts of fatty alcohols are synergist by 100 parts of N-dodecyl ethylenediamines, wherein said umber is mass fraction.
2. the cation-collecting agent that takes off of hematite reverse flotation according to claim 1 is characterized in that described synergist be molecular weight greater than 60 fatty alcohol is a kind of in n-butanol, polyethylene glycol, n-hexyl alcohol, the tert-butyl alcohol.
3. the preparation method of the cation-collecting agent that takes off of a hematite reverse flotation, the layoutprocedure that it is characterized in that this cation-collecting agent is: at room temperature, N-dodecyl ethylenediamine is mixed in mass ratio with glacial acetic acid, the fatty alcohol that adds certain mass through the mixing speed of 300～1500rad/min 3～10 minutes after become uniform solution, stirred 2～3 minutes, and namely obtained hematite reverse flotation combination cation-collecting agent.
4. the application of the cation-collecting agent that takes off of a hematite reverse flotation, it is characterized in that after adding adjusting agent (bloodstone inhibitor), according to dosage directly add after cation-collecting agent that this hematite reverse flotation takes off fully stirs with ore pulp in flotation cell, in flotation cell, carry out flotation under the normal temperature, do not need ore pulp is heated.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103769307A (en) * | 2013-10-28 | 2014-05-07 | 东北大学 | Collecting agent for water-soluble cations, preparation method thereof and application thereof |
| CN105233992A (en) * | 2015-11-05 | 2016-01-13 | 鞍钢集团矿业公司 | Hematite normal temperature short -flow reverse flotation method |
| CN105435968A (en) * | 2015-12-24 | 2016-03-30 | 东北大学 | Reverse-flotation desiliconizing method for hematite ore |
| CN105597942A (en) * | 2015-12-09 | 2016-05-25 | 西北有色地质矿业集团有限公司 | Collecting agent and application thereof to fine fraction gold ore flotation |
| CN106733209A (en) * | 2015-11-19 | 2017-05-31 | 中钢集团马鞍山矿山研究院有限公司 | A kind of preparation method of microfine iron ore reverse flotation collecting agent |
| CN106824546A (en) * | 2017-03-06 | 2017-06-13 | 东北大学 | A kind of magnesite ore puies forward the method that silicon drops in magnesium |
| CN108160334A (en) * | 2017-11-23 | 2018-06-15 | 北京有色金属研究总院 | A kind of preparation method of tungsten tin mine object collecting agent |
| CN109847945A (en) * | 2018-12-27 | 2019-06-07 | 东北大学 | A method of hematite reverse flotation is carried out using cation-collecting agent |
| CN111744679A (en) * | 2020-07-10 | 2020-10-09 | 攀枝花学院 | Iron ore flotation method |
| CN112423891A (en) * | 2018-06-19 | 2021-02-26 | 科莱恩国际有限公司 | Use of polyols for improving the reverse froth flotation process of iron ores |
| CN113333153A (en) * | 2021-07-15 | 2021-09-03 | 紫金矿业集团股份有限公司 | Beneficiation method for fine-grained embedded copper ore in plateau area |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103769307A (en) * | 2013-10-28 | 2014-05-07 | 东北大学 | Collecting agent for water-soluble cations, preparation method thereof and application thereof |
| CN105233992A (en) * | 2015-11-05 | 2016-01-13 | 鞍钢集团矿业公司 | Hematite normal temperature short -flow reverse flotation method |
| CN106733209A (en) * | 2015-11-19 | 2017-05-31 | 中钢集团马鞍山矿山研究院有限公司 | A kind of preparation method of microfine iron ore reverse flotation collecting agent |
| CN105597942A (en) * | 2015-12-09 | 2016-05-25 | 西北有色地质矿业集团有限公司 | Collecting agent and application thereof to fine fraction gold ore flotation |
| CN105597942B (en) * | 2015-12-09 | 2018-05-25 | 西北有色地质矿业集团有限公司 | A kind of collecting agent and its application in fine fraction gold ore flotation |
| CN105435968A (en) * | 2015-12-24 | 2016-03-30 | 东北大学 | Reverse-flotation desiliconizing method for hematite ore |
| CN106824546A (en) * | 2017-03-06 | 2017-06-13 | 东北大学 | A kind of magnesite ore puies forward the method that silicon drops in magnesium |
| CN108160334A (en) * | 2017-11-23 | 2018-06-15 | 北京有色金属研究总院 | A kind of preparation method of tungsten tin mine object collecting agent |
| CN112423891A (en) * | 2018-06-19 | 2021-02-26 | 科莱恩国际有限公司 | Use of polyols for improving the reverse froth flotation process of iron ores |
| CN109847945A (en) * | 2018-12-27 | 2019-06-07 | 东北大学 | A method of hematite reverse flotation is carried out using cation-collecting agent |
| CN111744679A (en) * | 2020-07-10 | 2020-10-09 | 攀枝花学院 | Iron ore flotation method |
| CN113333153A (en) * | 2021-07-15 | 2021-09-03 | 紫金矿业集团股份有限公司 | Beneficiation method for fine-grained embedded copper ore in plateau area |
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